Interpolation artifacts in segmentation masks.

[LucaBonfiglioli]

Hello, I need to render segmentation masks with pyrender. Normally I would do it by setting flags=pr.RenderFlags.SEG and by adding the segmentation color map as described in your documentation.

This works fine, except for when two meshes are colliding, in which case some artifacts appear in the segmentation mask. See the example below.

As you can see, wherever there's a collision between meshes, the segmentation is wrong: the pixels get assigned a mixing of the two colliding colors.

Is there any workaround to solve this issue?